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3d foamy f-18

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Old 06-02-2006, 09:22 AM
  #1  
hornet driver
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Default 3d foamy f-18

can someone help me. i cant find the cg for my f-18 in the instructions

thanks
Old 06-02-2006, 09:39 AM
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Default RE: 3d foamy f-18

I had the same problem I have it scaled to 3.87 from the front edge of the wing where it fits into the fuse. A few other missing dimensions are 16.83 from the same location to the stabilator pivot point, 14.29 to the front of the stabilator servo case, 4.76 to the front of the aileron servo case.

I don't use rudder so I can't help with any of that. Ultimately if you have your spars put in on the same angle as shown the CG will be right where they meet.
Old 06-07-2006, 02:22 PM
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sparkvark
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Default RE: 3d foamy f-18

I had the same issue when I built mine. I e-mailed 3-D foamy. If you bought a kit, 3-D suggests a CG at the location of the slits in the wing near the fuse. Mine is at the far aft edge of this. It seems a bit nose heavy but a quick test with a cardboard F-18 convinced me that any further aft and you risk the possibility of a flat, non-recoverable spin. BTW, I also set low rates on my TX with about 50% of the recommend throws. I have 10 flights and have not moved off the low rates. on a 20 deg nose up to 20 deg. nose down ballistic path, I can get 1080 deg of roll and I can pitch it almost to a "cobra" type maneuver.
Old 06-07-2006, 09:45 PM
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Default RE: 3d foamy f-18

I am on unit 8

HD, a response would be nice if we where of assistance
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Old 07-10-2006, 06:48 PM
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rsallison
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Default RE: 3d foamy f-18

Hi Hornet Driver! The CG is 3 to 3.5 inches aftof the leading edge of the wing and/or from aft side former F-3.
Thats whats on my copy of the assembly drawing.
Old 07-11-2006, 11:43 PM
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HORNET FLYER
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Default RE: 3d foamy f-18

hey guys

i put the c.g. in the middle of the slits cut near the middle of the wing.........in the middle of the slit.................i love this airplane.....i love this airplane haha. its a blast to fly, my set up is a hacker 20-20l cc 25 tp -2100 3s and a 10-4.7 prop turned backwards..............its a rocket ship, i dont even have to throw it .........i just give it a under hand toss and its gone.......that little hacker has a lot of power for its size-weight

high alphas are a breez and look cool!............what a hell of a plane

paul

thanks guys
Old 07-12-2006, 10:32 AM
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Default RE: 3d foamy f-18

Paul, if you want more excitement, try a 9x6 prop. My F-14 really rips with that prop! The 10x4.7 is good on the 20L for 3D planes but the 9x6 will give you even better speed and climb on your jet. Good times!
Old 07-12-2006, 12:00 PM
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Default RE: 3d foamy f-18

I use the 9X6 also
Old 07-12-2006, 01:54 PM
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big dk
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Default RE: 3d foamy f-18

Hey guys. Where can I get an F-18 like this? Who makes it? Thanks

DK
Old 07-12-2006, 02:11 PM
  #10  
OldFart1
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Default RE: 3d foamy f-18

Couple of different ways.

Plane kit can be had here: http://3dfoamy.com/

Plans are available here: http://www.parkjets.com/
Old 07-12-2006, 08:50 PM
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abjet
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Default RE: 3d foamy f-18

can some one please help me, i have a lot of spare parts and extra ducted fan units and would like to build a custom electric jet probably a f16. i need to know where to buy fuselage, duct intakeplug and other parts.
Old 07-12-2006, 10:04 PM
  #12  
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Default RE: 3d foamy f-18

6mm looks ok to me
Old 07-12-2006, 11:12 PM
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cbflyguy
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Default RE: 3d foamy f-18

You can also get an F-18 E Super Hornet kitted, laser cut, clear canopy, full hardware at [link=http://www.6mmflyrc.com/original-series]6mmFlyRC Catalog[/link]
Old 07-13-2006, 07:18 AM
  #14  
big dk
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Default RE: 3d foamy f-18

Thanks Jeff. I actually went to 6mm and ordered the F-14 kit. It looks sweet, flies a bit slow, but I think its great and complicated to start with and then I may build the F-18 or Super Bandit in the future for speed.
Old 07-13-2006, 08:35 PM
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quietrcfly
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Default RE: 3d foamy f-18


ORIGINAL: big dk

Hey guys. Where can I get an F-18 like this? Who makes it? Thanks

DK
3DFoamy makes the kits. Quiet RC Flying is an authorized dealer of 3DFoamy kits and, this week only, all 3DFoamy kits are on sale. It is limited to stock on hand, but I do know we have a couple of those kits in stock. Come check it out at: http://www.quiet********.com

Chris
Old 07-13-2006, 11:57 PM
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BVFlyGirl
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Default RE: 3d foamy f-18

And if you need custom clear canopies, you can get them at 6mmflyrc -- they throw the pilots in too, the clear canopy looks sharp with the pilots all painted up! 6mm kits come with clear canopies standard but if you already have a jet, you can order it separately as an accessory and retrofit it on.
Old 09-11-2006, 09:33 PM
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TrainDriver95
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Default RE: 3d foamy f-18

I found that the best CG is right were the Carbon fiber rods meet the fus on the wings.
ORIGINAL: sparkvark

I had the same issue when I built mine. I e-mailed 3-D foamy. If you bought a kit, 3-D suggests a CG at the location of the slits in the wing near the fuse. Mine is at the far aft edge of this. It seems a bit nose heavy but a quick test with a cardboard F-18 convinced me that any further aft and you risk the possibility of a flat, non-recoverable spin. BTW, I also set low rates on my TX with about 50% of the recommend throws. I have 10 flights and have not moved off the low rates. on a 20 deg nose up to 20 deg. nose down ballistic path, I can get 1080 deg of roll and I can pitch it almost to a "cobra" type maneuver.

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